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15 Feb ’12
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Wow, $3500 for 10kw $3000 for 7kw
The Tesla Powerwall is a rechargeable lithium-ion battery designed to store energy at a residential level for load shifting, backup power and self-consumption of solar power generation. The Powerwall consists of Tesla’s lithium-ion battery pack, liquid thermal control system and software that receives dispatch commands from a solar inverter. The unit mounts seamlessly on a wall and is integrated with the local grid to harness excess power and give customers the flexibility to draw energy from their own reserve.
The battery can provide a number of different benefits to the customer including:
- Load shifting – The battery can provide financial savings to its owner by charging during low rate periods when demand for electricity is lower and discharging during more expensive rate periods when electricity demand is higher
- Increasing self-consumption of solar power generation – The battery can store surplus solar energy not used at the time it is generated and use that energy later when the sun is not shining
- Back-up power – Assures power in the event of an outage
The Powerwall Home Battery increases the capacity for a household’s solar consumption, while also offering backup functionality during grid outages.
The Powerwall is available in 10kWh, optimized for backup applications or 7kWh optimized for daily use applications. Both can be connected with solar or grid and both can provide backup power. The 10kWh Powerwall is optimized to provide backup when the grid goes down, providing power for your home when you need it most. When paired with solar power, the 7kWh Powerwall can be used in daily cycling to extend the environmental and cost benefits of solar into the night when sunlight is unavailable.
Tesla’s selling price to installers is $3500 for 10kWh and $3000 for 7kWh. (Price excludes inverter and installation.) Deliveries begin in late Summer.
Powerwall specs:
Mounting: Wall Mounted Indoor/Outdoor
Inverter: Pairs with growing list of inverters
Energy: 7kWh or 10kWh
Continuous Power: 2kW
Peak Power: 3kW
Round Trip Efficiency: >92%
Operating Temperature Range: -20C (-4F) to 43C (110F)
Warranty: 10 years
Dimensions: H: 1300mm W: 860mm D:180mm
15 Feb ’12
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A little disconcerting
Tesla Chief Executive Elon Musk introduced a new family of batteries designed to stretch the solar-power revolution into its next phase. There's just one problem: Tesla's new battery doesn't work well with rooftop solar—at least not yet. Even Solar City, the supplier led by Musk, isn't ready to offer Tesla's battery for daily use.
The new Tesla Powerwall home batteries come in two sizes—seven and 10 kilowatt hours (kWh)—but the differences extend beyond capacity to the chemistry of the batteries. The 7kWh version is made for daily use, while its larger counterpart is only intended to be used as occasional backup when the electricity goes out. The bigger Tesla battery isn't designed to go through more than about 50 charging cycles a year, according to SolarCity spokesman Jonathan Bass.
21 Feb ’12
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hm. maybe a step in the right direction though. i feel like battery power (or smaller, more portable / potent power supplies) are going to be the next big thing in tech the way the PC was. If we can solve the mobile power issue it will change everything.
15 Feb ’12
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Well, seems they have sold out till 2016 already
15 Feb ’12
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Almost a billion in reservations in the first week.
Tesla is already building a 5-million-square-foot battery factory. It's not big enough.
That was the message from Tesla Chief Executive Officer Elon Musk this week while discussing, for the first time, the early response to his new product line of storage batteries designed for use in homes and businesses. The numbers are impressive. In the first few days of reservations since the battery announcement on April 30, Tesla took orders worth roughly $800 million in potential revenue, according to figures compiled by Bloomberg Business.
If those numbers were realized, it would be almost as much as the company took in from car sales in the entire first quarter of 2015. "It's like crazy off-the-hook," Musk said during an earnings presentation on Wednesday. "The sheer volume of demand here is just staggering."
Before anyone gets too excited, it's important to note the biggest caveat: reservations don’t necessarily convert to sales. That’s especially true for the home storage batteries sold under the name Powerwall. Anyone can go online and place a reservation, years in advance, with no money down and no commitment to buy. To reserve a Tesla Model X vehicle, by contrast, requires $5,000 up front. Tesla declined to clarify what constitutes a "reservation" for a business or utility-scale project.
There's also no way for Tesla to keep up with the level of demand reflected by the early reservations. The company is sold out of storage batteries until mid-2016. Musk claimed the production of storage batteries alone could "easily" take up the entire capacity of Tesla's $5 billion factory in Nevada, which is scheduled to open next year. The massive facility was originally slated to devote about two-thirds of its output to electric-vehicle batteries. "We should try to make the factory bigger," Musk said.
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